🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.9

Radius: 9.7

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.59 AU - 0.89 AU

Year: 447 Days

Day: 14.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 71,936,006 km

• M1: 120,576 km (0.098 R)
• M2: 493,523 km (0.102 R)
• M3: 1,102,237 km (0.11 R)
• M4: 1,438,234 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.1

Radius: 8.7

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.75 AU - 0.91 AU

Year: 532 Days

Day: 6.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,936,006 km

• M1: 108,458 km (0.065 R)
• M2: 411,693 km (0.102 R)
• M3: 1,035,816 km (0.09 R)
• M4: 1,728,454 km (0.078 R)
• M5: 2,409,274 km (0.089 R)
• M6: 2,934,512 km (0.087 R)
• M7: 3,296,688 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.8

Radius: 10.2

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.93 AU - 1.05 AU

Year: 692 Days

Day: 14.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 64 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,936,006 km

• M1: 127,009 km (0.048 R)
• M2: 502,050 km (0.097 R)
• M3: 827,875 km (0.03 R)
• M4: 1,205,908 km (0.051 R)
• M5: 1,531,583 km (0.109 R)
• M6: 1,902,586 km (0.088 R)
• M7: 2,659,850 km (0.108 R)
• M8: 3,493,709 km (0.09 R)
• M9: 4,182,607 km (0.081 R)
• M10: 4,613,598 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.3

Radius: 14.2

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.12 AU - 1.84 AU

Year: 1266 Days

Day: 8 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,936,006 km

• M1: 176,525 km (0.102 R)
• M2: 635,641 km (0.055 R)
• M3: 1,083,537 km (0.075 R)
• M4: 1,834,369 km (0.041 R)
• M5: 2,415,407 km (0.117 R)
• M6: 3,237,298 km (0.112 R)
• M7: 3,909,441 km (0.098 R)
• M8: 4,369,604 km (0.091 R)
• M9: 6,201,729 km (0.089 R)
• M10: 6,966,773 km (0.108 R)
• M11: 8,659,323 km (0.116 R)
• M12: 9,252,778 km (0.105 R)

Asteroid Belt

Center: 1.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.1

Radius: 12.7

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.85 AU - 2.31 AU

Year: 2109 Days

Day: 14.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,936,006 km

• M1: 158,275 km (0.117 R)
• M2: 567,275 km (0.109 R)
• M3: 1,095,206 km (0.078 R)
• M4: 1,593,965 km (0.118 R)
• M5: 2,057,270 km (0.113 R)
• M6: 2,511,898 km (0.058 R)
• M7: 2,954,857 km (0.056 R)
• M8: 3,381,211 km (0.083 R)
• M9: 4,177,521 km (0.093 R)
• M10: 4,652,793 km (0.118 R)
• M11: 5,303,544 km (0.069 R)
• M12: 6,065,745 km (0.085 R)
• M13: 6,760,029 km (0.065 R)
• M14: 8,533,063 km (0.107 R)
• M15: 9,971,745 km (0.113 R)
• M16: 10,978,389 km (0.07 R)
• M17: 12,299,638 km (0.12 R)
• M18: 13,949,253 km (0.106 R)
• M19: 16,038,388 km (0.12 R)
• M20: 18,165,819 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.1

Radius: 14.2

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.84 AU - 2.9 AU

Year: 2565 Days

Day: 8.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,936,006 km

• M1: 176,525 km (0.097 R)
• M2: 687,701 km (0.067 R)
• M3: 1,273,975 km (0.099 R)
• M4: 1,826,141 km (0.068 R)
• M5: 2,272,691 km (0.078 R)
• M6: 2,968,171 km (0.069 R)
• M7: 3,520,337 km (0.113 R)
• M8: 4,265,334 km (0.056 R)
• M9: 4,856,844 km (0.103 R)
• M10: 6,151,913 km (0.088 R)
• M11: 8,277,400 km (0.09 R)
• M12: 9,237,519 km (0.095 R)
• M13: 10,697,145 km (0.041 R)
• M14: 13,145,464 km (0.086 R)
• M15: 14,404,181 km (0.096 R)
• M16: 15,236,992 km (0.094 R)
• M17: 17,762,653 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97.3

Radius: 3.2

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.51 AU - 10.11 AU

Year: 16839 Days

Day: 23.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,936,006 km

• M1: 41,439 km (0.101 R)
• M2: 293,960 km (0.119 R)
• M3: 547,079 km (0.099 R)
• M4: 1,310,477 km (0.08 R)
• M5: 1,555,818 km (0.052 R)
• M6: 2,121,148 km (0.031 R)
• M7: 3,072,291 km (0.098 R)
• M8: 4,023,884 km (0.116 R)
• M9: 5,922,580 km (0.065 R)
• M10: 6,417,150 km (0.093 R)
• M11: 17,143,916 km (0.108 R)
• M12: 21,373,347 km (0.109 R)
• M13: 22,608,277 km (0.115 R)
• M14: 22,924,228 km (0.098 R)
• M15: 25,559,095 km (0.117 R)
• M16: 27,304,454 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 816.6

Radius: 3.3

Gravity: 74.99 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.75 AU - 8.87 AU

Year: 16839 Days

Day: 20.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 164.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 71,936,006 km

• M1: 40,990 km (0.097 R)
• M2: 319,242 km (0.111 R)
• M3: 460,313 km (0.114 R)
• M4: 678,726 km (0.108 R)
• M5: 796,160 km (0.104 R)
• M6: 1,758,523 km (0.105 R)
• M7: 2,040,964 km (0.101 R)
• M8: 2,288,249 km (0.098 R)
• M9: 4,746,591 km (0.093 R)
• M10: 4,924,014 km (0.113 R)
• M11: 5,179,677 km (0.05 R)
• M12: 6,333,824 km (0.117 R)
• M13: 6,993,401 km (0.101 R)
• M14: 7,457,903 km (0.117 R)
• M15: 8,091,898 km (0.119 R)
• M16: 9,300,200 km (0.105 R)
• M17: 9,578,004 km (0.119 R)
• M18: 11,488,219 km (0.118 R)
• M19: 12,133,584 km (0.1 R)
• M20: 12,734,668 km (0.102 R)
• M21: 13,077,098 km (0.106 R)
• M22: 13,496,122 km (0.073 R)
• M23: 13,996,227 km (0.112 R)
• M24: 18,362,690 km (0.051 R)
• M25: 19,876,471 km (0.12 R)
• M26: 23,454,403 km (0.116 R)
• M27: 26,541,654 km (0.112 R)
• M28: 26,987,605 km (0.059 R)
• M29: 30,129,759 km (0.082 R)
• M30: 34,952,346 km (0.081 R)
• M31: 40,853,234 km (0.092 R)
• M32: 41,897,128 km (0.103 R)
• M33: 44,819,821 km (0.054 R)
• M34: 45,452,022 km (0.118 R)
• M35: 46,896,090 km (0.096 R)
• M36: 48,370,377 km (0.092 R)
• M37: 56,758,180 km (0.047 R)
• M38: 57,497,942 km (0.07 R)
• M39: 59,186,004 km (0.065 R)
• M40: 66,064,364 km (0.11 R)
• M41: 66,882,814 km (0.072 R)
• M42: 68,749,048 km (0.117 R)
• M43: 70,649,689 km (0.066 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 302 - 15,385 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit